Yakanyura arc welding (SAW) inowanzoitika arc welding process.Yekutanga patent pane ye submerged-arc welding (SAW) process yakatorwa muna 1935 uye yakavhara arc yemagetsi pasi pemubhedha we granulated flux.Pakutanga yakagadziridzwa uye patented naJones, Kennedy naRothermund, maitiro acho anoda anoramba achidyiwa akasimba kana tubular (metal cored) electrode.Iyo yakanyungudutswa weld uye arc zone inodzivirirwa kubva mukusvibiswa kwemuchadenga ne "kunyudzwa" pasi pegumbeze regranular fusible flux inosanganisira lime, silica, manganese oxide, calcium fluoride, uye mamwe macompound.Kana yakanyungudutswa, iyo flux inova conductive, uye inopa yazvino nzira pakati pe electrode nebasa.Iri gobvu rehutsi rinovhara zvachose simbi yakanyungudutswa nokudaro kudzivirira spatter uye spark pamwe nekudzvanyirira yakanyanya ultraviolet mwaranzi uye utsi huri chikamu che shielded metal arc welding (SMAW) process.

SAW inowanzo shandiswa mune otomatiki kana mechanized modhi, zvisinei, semi-otomatiki (ruoko-yakabatwa) SAW pfuti dzine kumanikidzwa kana giravhiti flux feed delivery iripo.Maitiro acho anowanzo kuganhurirwa kune yakafuratira kana yakachinjika-fillet welding nzvimbo (kunyangwe horizontal groove chinzvimbo welds yakaitwa nehurongwa hwakakosha kutsigira flux).Deposition rates inosvika 45 kg / h (100 lb / h) yakashumwa-izvi zvinofananidzwa ne ~ 5 kg/h (10 lb/h) (max) ye shielded metal arc welding.Kunyangwe mapopoma anotangira pa300 kusvika 2000 A achiwanzo shandiswa, macurrents anosvika 5000 A akashandiswawo (multiple arcs).

Single kana akawanda (2 kusvika 5) electrode waya kusiyana kwemaitiro aripo.SAW strip-cladding inoshandisa flat strip electrode (eg 60 mm yakafara x 0.5 mm gobvu).DC kana AC simba rinogona kushandiswa, uye musanganiswa weDC neAC wakajairika pane akawanda emagetsi masisitimu.Constant voltage welding magetsi emagetsi anonyanya kushandiswa;zvisinei, zvigadziriso zvinogara zviripo zvakasanganiswa nevoltage sensing wire-feeder zviripo.